Electronic labeling systems and methods and electronic card systems and methods

1. An identification label, comprising: (a) a first electrical contact; (b) a second electrical contact; (c) an electronic circuit comprising (c1) an input-output terminal electrically coupled to said first electrical contact and said second electrical contact via a one-wire bus; (c2) a converter coupled to said input-output terminal; (c3) a scratchpad memory electrically coupled to said converter; (c4) a secure memory coupled to said scratchpad memory; and (c5) a control logic unit electrically coupled to each of said converter, said scratchpad memory and said secure memory, said control logic unit transfering information from said scratchpad memory to said secure memory as a block of data in response to a block transfer command received at said input-output terminal via said first electrical contact and said second electrical contact, wherein said electronic circuit provides receipt and transmission of digital signals as voltage differences between said first electrical contact and said second electrical contact.

2. The identification label of claim 1, wherein said first and second electrical contacts extend out and away from said electronic circuit and are affixed to the outside of a collapsible container of a fluid.

3. The identification label of claim 2, wherein said fluid comprises blood.

4. The identification label of claim 2, wherein said fluid comprises a drug.

5. The identification label of claim 1, further comprising an encapsulating layer, said encapsulating layer sealing said electronic circuit.

6. The identification label of claim 1, wherein each of said first electrical contact and said electrical contact is solderable.

7. The identification label of claim 1, wherein said electronic circuit drives a light emitting diode via said input-output terminal.

8. The identification label of claim 1, wherein said electronic circuit has a side surface, said side surface having an adhesive positioned thereon for adhering said electronic circuit to a physical object.

9. The identification label of claim 8, wherein said physical object is a credit card.

10. The identification label of claim 1, wherein each of said first electrical contact and said second electrical contact is wire-bondable.